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A high-sugar, high-fat diet was not associated with an increased prevalence of diabetes, metabolic syndrome, cardiovascular disease or death in adults age 75 and older, a study showed. However, a higher risk of hypertension was seen in those who ate a diet high in sugar and dairy, researchers said. The findings were published in the Journal of Nutrition Health and Aging.

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A study in rats from Canada's Heart and Stroke Foundation links eating a high-fat, high-sugar Western diet to an increased risk of developing metabolic syndrome and stroke. The authors said a balanced diet and regular exercise are needed to prevent metabolic syndrome.

Researchers at the University of California, Irvine, found that mice engineered to have lower levels of the endocannabinoid 2-AG compound burned fat calories more efficiently and showed no signs of metabolic syndrome, compared with their unmodified counterparts, despite having a high-fat diet. The findings in Cell Metabolism suggest that blocking the chemical may aid in weight loss.

The flavonoid rutin in onions, green tea and olive leaves helped prevent the growth of inflammatory cells and improved heart and liver function in rats on a high-fat, high-sugar diet, a study in the Journal of Nutrition and the Current Pharmaceutical Biotechnology found. Researchers said rutin could help address obesity and related diseases, including diabetes, heart disease and fatty liver.

Nobiletin, a flavonoid found in high concentrations in tangerines, prevented obesity and the onset of diabetes in mice on a high-sugar, high-fat diet, according to a Canadian study published in the journal Diabetes. Researchers found that nobiletin prevented fat buildup in the liver by blocking genes responsible for fat production.